They'd originally signed the post, but this was removed as part of normal SE housekeeping. There is no verifying information in the profile, where it should have appeared.
On one hand, this is not a good SE answer, because the supporting information is essentially of the form "it's somewhere in this list that I also wrote." There are some active users here that over time have established identity and authority in certain areas, but this it the first post by this user id. (spot checks did not seem to suggest this list contains verification either.)
On the other hand, there's a good chance the post is by who it seems to be by, and the answer has accumulated a score of up votes, and up voting is supposed to be one indicator of an answer's quality and possibly correctness, and if the answer were glaringly wrong I have a hunch other readers would have caught the problem quickly and pointed it out. At least I assume some of the up voters checked... right?
So, do user ids that appear to be people with Wikipedia pages and asteroids get a pass on standard procedure, or should I hold out and not accept until the answer gets some independent verification/validation, or the user is somehow verified, or one of the many people who double-checked before reflexively up voting takes a moment to edit the question and help the busy poster out?